How thick is Styrofoam insulation?

Styrofoam home insulation sheets provide long-lasting insulation that is easy to install. The sheets come in varying lengths and widths, and according to insulation-advice.com, the most common thic...
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How thick is R-30 ceiling insulation?

Owens Corning manufactures R-30 pink fiberglass insulation. It comes in various sizes, but the thickness for all sizes is 9/12 inch. It is available in widths from 15 1/2 inches to 24 inches and is...
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How thick is R-38 cellulose insulation?

The R-value is a measure of how well a substance acts as insulation. Blown-in cellulose insulation has a value of about R-3.5 to R-3.7 per square inch. So to get R-38 protection, you'll need a laye...
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